i want the challenge. >> reporter: pacquiao is a legend back home in the philippines. he was elected to congress there in 2010. why politics? >> i like to serve people. i'm the one who fights human trafficking, to stop that. i know the feeling of being poor. i know the people in the philippines live in poverty and i wanted to help them. >> reporter: besides congress, you do a few other things. there's the singing. ♪ ♪ sometimes when we touch the honesty is too much ♪ >> reporter: there's the acting. >> our hero is william wallace. william wallace from scotland. >> reporter: if you're not fighting, you're not politicking, you're not in congress, you're not singing, you're not acting, what do you do for fun? >> i like sports. >> reporter: do you lose at anything? >> sometimes i lose. >> reporter: you said you think there's only one or two fights after this for manny. >> yep. >> reporter: is there a lot to of nostalgia then as you sit here training? >> it will be a sad day. but i want to see manny pacquiao go out on top. >> if manny is victorious that will be a sign